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Commit | Line | Data |
---|---|---|
1c248b7d ID |
1 | /* |
2 | * Copyright (c) 2011 Samsung Electronics Co., Ltd. | |
3 | * Authors: | |
4 | * Inki Dae <inki.dae@samsung.com> | |
5 | * Joonyoung Shim <jy0922.shim@samsung.com> | |
6 | * Seung-Woo Kim <sw0312.kim@samsung.com> | |
7 | * | |
d81aecb5 ID |
8 | * This program is free software; you can redistribute it and/or modify it |
9 | * under the terms of the GNU General Public License as published by the | |
10 | * Free Software Foundation; either version 2 of the License, or (at your | |
11 | * option) any later version. | |
1c248b7d ID |
12 | */ |
13 | ||
af65c804 | 14 | #include <linux/pm_runtime.h> |
760285e7 | 15 | #include <drm/drmP.h> |
a379df19 GP |
16 | #include <drm/drm_atomic.h> |
17 | #include <drm/drm_atomic_helper.h> | |
760285e7 | 18 | #include <drm/drm_crtc_helper.h> |
d2936153 | 19 | #include <drm/drm_fb_helper.h> |
1c248b7d | 20 | |
f37cd5e8 | 21 | #include <linux/component.h> |
96f54215 | 22 | |
1c248b7d ID |
23 | #include <drm/exynos_drm.h> |
24 | ||
25 | #include "exynos_drm_drv.h" | |
1c248b7d ID |
26 | #include "exynos_drm_fbdev.h" |
27 | #include "exynos_drm_fb.h" | |
28 | #include "exynos_drm_gem.h" | |
864ee9e6 | 29 | #include "exynos_drm_plane.h" |
9913f74f | 30 | #include "exynos_drm_ipp.h" |
b73d1230 | 31 | #include "exynos_drm_vidi.h" |
d7f1642c | 32 | #include "exynos_drm_g2d.h" |
0519f9a1 | 33 | #include "exynos_drm_iommu.h" |
1c248b7d | 34 | |
0edf9936 | 35 | #define DRIVER_NAME "exynos" |
1c248b7d | 36 | #define DRIVER_DESC "Samsung SoC DRM" |
9913f74f MS |
37 | #define DRIVER_DATE "20180330" |
38 | ||
39 | /* | |
40 | * Interface history: | |
41 | * | |
42 | * 1.0 - Original version | |
43 | * 1.1 - Upgrade IPP driver to version 2.0 | |
44 | */ | |
1c248b7d | 45 | #define DRIVER_MAJOR 1 |
9913f74f | 46 | #define DRIVER_MINOR 1 |
1c248b7d | 47 | |
38d868e4 VS |
48 | int exynos_atomic_check(struct drm_device *dev, |
49 | struct drm_atomic_state *state) | |
50 | { | |
51 | int ret; | |
52 | ||
53 | ret = drm_atomic_helper_check_modeset(dev, state); | |
54 | if (ret) | |
55 | return ret; | |
56 | ||
57 | ret = drm_atomic_normalize_zpos(dev, state); | |
58 | if (ret) | |
59 | return ret; | |
60 | ||
61 | ret = drm_atomic_helper_check_planes(dev, state); | |
62 | if (ret) | |
63 | return ret; | |
64 | ||
65 | return ret; | |
66 | } | |
67 | ||
9084f7b8 JS |
68 | static int exynos_drm_open(struct drm_device *dev, struct drm_file *file) |
69 | { | |
d7f1642c | 70 | struct drm_exynos_file_private *file_priv; |
ba3706c0 | 71 | int ret; |
d7f1642c | 72 | |
d7f1642c JS |
73 | file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL); |
74 | if (!file_priv) | |
75 | return -ENOMEM; | |
76 | ||
d7f1642c | 77 | file->driver_priv = file_priv; |
b2df26c1 | 78 | |
ba3706c0 | 79 | ret = exynos_drm_subdrv_open(dev, file); |
6ca605f7 | 80 | if (ret) |
307ceaff | 81 | goto err_file_priv_free; |
ba3706c0 | 82 | |
6ca605f7 | 83 | return ret; |
307ceaff | 84 | |
307ceaff | 85 | err_file_priv_free: |
6ca605f7 SK |
86 | kfree(file_priv); |
87 | file->driver_priv = NULL; | |
ba3706c0 | 88 | return ret; |
9084f7b8 JS |
89 | } |
90 | ||
0cbc330e | 91 | static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file) |
ccf4d883 | 92 | { |
b13b4d1b | 93 | exynos_drm_subdrv_close(dev, file); |
53ef299f ID |
94 | kfree(file->driver_priv); |
95 | file->driver_priv = NULL; | |
96 | } | |
97 | ||
78b68556 | 98 | static const struct vm_operations_struct exynos_drm_gem_vm_ops = { |
1c248b7d ID |
99 | .fault = exynos_drm_gem_fault, |
100 | .open = drm_gem_vm_open, | |
101 | .close = drm_gem_vm_close, | |
102 | }; | |
103 | ||
baa70943 | 104 | static const struct drm_ioctl_desc exynos_ioctls[] = { |
1c248b7d | 105 | DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl, |
f8c47144 | 106 | DRM_AUTH | DRM_RENDER_ALLOW), |
6564c65f JS |
107 | DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP, exynos_drm_gem_map_ioctl, |
108 | DRM_AUTH | DRM_RENDER_ALLOW), | |
74f230d2 | 109 | DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET, exynos_drm_gem_get_ioctl, |
f8c47144 | 110 | DRM_RENDER_ALLOW), |
74f230d2 | 111 | DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION, vidi_connection_ioctl, |
f8c47144 | 112 | DRM_AUTH), |
74f230d2 | 113 | DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER, exynos_g2d_get_ver_ioctl, |
f8c47144 | 114 | DRM_AUTH | DRM_RENDER_ALLOW), |
74f230d2 | 115 | DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST, exynos_g2d_set_cmdlist_ioctl, |
f8c47144 | 116 | DRM_AUTH | DRM_RENDER_ALLOW), |
74f230d2 | 117 | DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC, exynos_g2d_exec_ioctl, |
f8c47144 | 118 | DRM_AUTH | DRM_RENDER_ALLOW), |
9913f74f MS |
119 | DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_RESOURCES, |
120 | exynos_drm_ipp_get_res_ioctl, | |
121 | DRM_AUTH | DRM_RENDER_ALLOW), | |
122 | DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_CAPS, exynos_drm_ipp_get_caps_ioctl, | |
123 | DRM_AUTH | DRM_RENDER_ALLOW), | |
124 | DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_LIMITS, | |
125 | exynos_drm_ipp_get_limits_ioctl, | |
126 | DRM_AUTH | DRM_RENDER_ALLOW), | |
127 | DRM_IOCTL_DEF_DRV(EXYNOS_IPP_COMMIT, exynos_drm_ipp_commit_ioctl, | |
128 | DRM_AUTH | DRM_RENDER_ALLOW), | |
1c248b7d ID |
129 | }; |
130 | ||
ac2bdf73 JS |
131 | static const struct file_operations exynos_drm_driver_fops = { |
132 | .owner = THIS_MODULE, | |
133 | .open = drm_open, | |
134 | .mmap = exynos_drm_gem_mmap, | |
135 | .poll = drm_poll, | |
136 | .read = drm_read, | |
137 | .unlocked_ioctl = drm_ioctl, | |
804d74ab | 138 | .compat_ioctl = drm_compat_ioctl, |
ac2bdf73 JS |
139 | .release = drm_release, |
140 | }; | |
141 | ||
1c248b7d | 142 | static struct drm_driver exynos_drm_driver = { |
c8c38ccf | 143 | .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME |
74f230d2 | 144 | | DRIVER_ATOMIC | DRIVER_RENDER, |
9084f7b8 | 145 | .open = exynos_drm_open, |
d2936153 | 146 | .lastclose = drm_fb_helper_lastclose, |
53ef299f | 147 | .postclose = exynos_drm_postclose, |
201f9b97 | 148 | .gem_free_object_unlocked = exynos_drm_gem_free_object, |
1c248b7d ID |
149 | .gem_vm_ops = &exynos_drm_gem_vm_ops, |
150 | .dumb_create = exynos_drm_gem_dumb_create, | |
b2df26c1 ID |
151 | .prime_handle_to_fd = drm_gem_prime_handle_to_fd, |
152 | .prime_fd_to_handle = drm_gem_prime_fd_to_handle, | |
01ed50dd | 153 | .gem_prime_export = drm_gem_prime_export, |
89452d4a | 154 | .gem_prime_import = exynos_drm_gem_prime_import, |
01ed50dd JS |
155 | .gem_prime_get_sg_table = exynos_drm_gem_prime_get_sg_table, |
156 | .gem_prime_import_sg_table = exynos_drm_gem_prime_import_sg_table, | |
157 | .gem_prime_vmap = exynos_drm_gem_prime_vmap, | |
158 | .gem_prime_vunmap = exynos_drm_gem_prime_vunmap, | |
5a0202f7 | 159 | .gem_prime_mmap = exynos_drm_gem_prime_mmap, |
1c248b7d | 160 | .ioctls = exynos_ioctls, |
baa70943 | 161 | .num_ioctls = ARRAY_SIZE(exynos_ioctls), |
ac2bdf73 | 162 | .fops = &exynos_drm_driver_fops, |
1c248b7d ID |
163 | .name = DRIVER_NAME, |
164 | .desc = DRIVER_DESC, | |
165 | .date = DRIVER_DATE, | |
166 | .major = DRIVER_MAJOR, | |
167 | .minor = DRIVER_MINOR, | |
168 | }; | |
169 | ||
af65c804 | 170 | #ifdef CONFIG_PM_SLEEP |
082ca313 | 171 | static int exynos_drm_suspend(struct device *dev) |
af65c804 SP |
172 | { |
173 | struct drm_device *drm_dev = dev_get_drvdata(dev); | |
0a51897b | 174 | struct exynos_drm_private *private; |
af65c804 | 175 | |
d50a1907 | 176 | if (pm_runtime_suspended(dev) || !drm_dev) |
af65c804 SP |
177 | return 0; |
178 | ||
0a51897b MS |
179 | private = drm_dev->dev_private; |
180 | ||
6e8edf8a MS |
181 | drm_kms_helper_poll_disable(drm_dev); |
182 | exynos_drm_fbdev_suspend(drm_dev); | |
183 | private->suspend_state = drm_atomic_helper_suspend(drm_dev); | |
184 | if (IS_ERR(private->suspend_state)) { | |
185 | exynos_drm_fbdev_resume(drm_dev); | |
186 | drm_kms_helper_poll_enable(drm_dev); | |
187 | return PTR_ERR(private->suspend_state); | |
082ca313 | 188 | } |
082ca313 AH |
189 | |
190 | return 0; | |
af65c804 SP |
191 | } |
192 | ||
082ca313 | 193 | static int exynos_drm_resume(struct device *dev) |
af65c804 SP |
194 | { |
195 | struct drm_device *drm_dev = dev_get_drvdata(dev); | |
0a51897b | 196 | struct exynos_drm_private *private; |
af65c804 | 197 | |
d50a1907 | 198 | if (pm_runtime_suspended(dev) || !drm_dev) |
af65c804 SP |
199 | return 0; |
200 | ||
0a51897b | 201 | private = drm_dev->dev_private; |
6e8edf8a MS |
202 | drm_atomic_helper_resume(drm_dev, private->suspend_state); |
203 | exynos_drm_fbdev_resume(drm_dev); | |
204 | drm_kms_helper_poll_enable(drm_dev); | |
082ca313 AH |
205 | |
206 | return 0; | |
af65c804 SP |
207 | } |
208 | #endif | |
209 | ||
af65c804 | 210 | static const struct dev_pm_ops exynos_drm_pm_ops = { |
082ca313 | 211 | SET_SYSTEM_SLEEP_PM_OPS(exynos_drm_suspend, exynos_drm_resume) |
af65c804 SP |
212 | }; |
213 | ||
86650408 AH |
214 | /* forward declaration */ |
215 | static struct platform_driver exynos_drm_platform_driver; | |
f37cd5e8 | 216 | |
a5fb26cd MS |
217 | struct exynos_drm_driver_info { |
218 | struct platform_driver *driver; | |
219 | unsigned int flags; | |
220 | }; | |
221 | ||
222 | #define DRM_COMPONENT_DRIVER BIT(0) /* supports component framework */ | |
223 | #define DRM_VIRTUAL_DEVICE BIT(1) /* create virtual platform device */ | |
f43c3596 | 224 | #define DRM_DMA_DEVICE BIT(2) /* can be used for dma allocations */ |
a5fb26cd MS |
225 | |
226 | #define DRV_PTR(drv, cond) (IS_ENABLED(cond) ? &drv : NULL) | |
227 | ||
86650408 AH |
228 | /* |
229 | * Connector drivers should not be placed before associated crtc drivers, | |
230 | * because connector requires pipe number of its crtc during initialization. | |
231 | */ | |
a5fb26cd MS |
232 | static struct exynos_drm_driver_info exynos_drm_drivers[] = { |
233 | { | |
234 | DRV_PTR(fimd_driver, CONFIG_DRM_EXYNOS_FIMD), | |
f43c3596 | 235 | DRM_COMPONENT_DRIVER | DRM_DMA_DEVICE |
a5fb26cd MS |
236 | }, { |
237 | DRV_PTR(exynos5433_decon_driver, CONFIG_DRM_EXYNOS5433_DECON), | |
f43c3596 | 238 | DRM_COMPONENT_DRIVER | DRM_DMA_DEVICE |
a5fb26cd MS |
239 | }, { |
240 | DRV_PTR(decon_driver, CONFIG_DRM_EXYNOS7_DECON), | |
f43c3596 | 241 | DRM_COMPONENT_DRIVER | DRM_DMA_DEVICE |
a5fb26cd MS |
242 | }, { |
243 | DRV_PTR(mixer_driver, CONFIG_DRM_EXYNOS_MIXER), | |
f43c3596 | 244 | DRM_COMPONENT_DRIVER | DRM_DMA_DEVICE |
a5fb26cd MS |
245 | }, { |
246 | DRV_PTR(mic_driver, CONFIG_DRM_EXYNOS_MIC), | |
247 | DRM_COMPONENT_DRIVER | |
248 | }, { | |
249 | DRV_PTR(dp_driver, CONFIG_DRM_EXYNOS_DP), | |
250 | DRM_COMPONENT_DRIVER | |
251 | }, { | |
252 | DRV_PTR(dsi_driver, CONFIG_DRM_EXYNOS_DSI), | |
253 | DRM_COMPONENT_DRIVER | |
254 | }, { | |
255 | DRV_PTR(hdmi_driver, CONFIG_DRM_EXYNOS_HDMI), | |
256 | DRM_COMPONENT_DRIVER | |
257 | }, { | |
258 | DRV_PTR(vidi_driver, CONFIG_DRM_EXYNOS_VIDI), | |
259 | DRM_COMPONENT_DRIVER | DRM_VIRTUAL_DEVICE | |
260 | }, { | |
261 | DRV_PTR(g2d_driver, CONFIG_DRM_EXYNOS_G2D), | |
262 | }, { | |
263 | DRV_PTR(fimc_driver, CONFIG_DRM_EXYNOS_FIMC), | |
264 | }, { | |
265 | DRV_PTR(rotator_driver, CONFIG_DRM_EXYNOS_ROTATOR), | |
d8cb9eea | 266 | DRM_COMPONENT_DRIVER |
a5fb26cd MS |
267 | }, { |
268 | DRV_PTR(gsc_driver, CONFIG_DRM_EXYNOS_GSC), | |
a5fb26cd MS |
269 | }, { |
270 | &exynos_drm_platform_driver, | |
271 | DRM_VIRTUAL_DEVICE | |
272 | } | |
86650408 | 273 | }; |
f37cd5e8 | 274 | |
53c5558d | 275 | static int compare_dev(struct device *dev, void *data) |
f37cd5e8 ID |
276 | { |
277 | return dev == (struct device *)data; | |
278 | } | |
279 | ||
53c5558d | 280 | static struct component_match *exynos_drm_match_add(struct device *dev) |
f37cd5e8 | 281 | { |
53c5558d | 282 | struct component_match *match = NULL; |
86650408 | 283 | int i; |
f37cd5e8 | 284 | |
a5fb26cd MS |
285 | for (i = 0; i < ARRAY_SIZE(exynos_drm_drivers); ++i) { |
286 | struct exynos_drm_driver_info *info = &exynos_drm_drivers[i]; | |
86650408 | 287 | struct device *p = NULL, *d; |
f7c2f36f | 288 | |
a5fb26cd MS |
289 | if (!info->driver || !(info->flags & DRM_COMPONENT_DRIVER)) |
290 | continue; | |
291 | ||
292 | while ((d = bus_find_device(&platform_bus_type, p, | |
293 | &info->driver->driver, | |
86650408 AH |
294 | (void *)platform_bus_type.match))) { |
295 | put_device(p); | |
296 | component_match_add(dev, &match, compare_dev, d); | |
297 | p = d; | |
df5225bc | 298 | } |
86650408 | 299 | put_device(p); |
f37cd5e8 ID |
300 | } |
301 | ||
86650408 | 302 | return match ?: ERR_PTR(-ENODEV); |
f37cd5e8 ID |
303 | } |
304 | ||
1cd6ae35 ID |
305 | static struct device *exynos_drm_get_dma_device(void) |
306 | { | |
307 | int i; | |
308 | ||
309 | for (i = 0; i < ARRAY_SIZE(exynos_drm_drivers); ++i) { | |
310 | struct exynos_drm_driver_info *info = &exynos_drm_drivers[i]; | |
311 | struct device *dev; | |
312 | ||
313 | if (!info->driver || !(info->flags & DRM_DMA_DEVICE)) | |
314 | continue; | |
315 | ||
316 | while ((dev = bus_find_device(&platform_bus_type, NULL, | |
317 | &info->driver->driver, | |
318 | (void *)platform_bus_type.match))) { | |
319 | put_device(dev); | |
320 | return dev; | |
321 | } | |
322 | } | |
323 | return NULL; | |
324 | } | |
325 | ||
f37cd5e8 ID |
326 | static int exynos_drm_bind(struct device *dev) |
327 | { | |
896bbc3e LP |
328 | struct exynos_drm_private *private; |
329 | struct drm_encoder *encoder; | |
330 | struct drm_device *drm; | |
331 | unsigned int clone_mask; | |
332 | int cnt, ret; | |
333 | ||
334 | drm = drm_dev_alloc(&exynos_drm_driver, dev); | |
335 | if (IS_ERR(drm)) | |
336 | return PTR_ERR(drm); | |
337 | ||
338 | private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL); | |
339 | if (!private) { | |
340 | ret = -ENOMEM; | |
341 | goto err_free_drm; | |
342 | } | |
343 | ||
344 | init_waitqueue_head(&private->wait); | |
345 | spin_lock_init(&private->lock); | |
346 | ||
347 | dev_set_drvdata(dev, drm); | |
348 | drm->dev_private = (void *)private; | |
349 | ||
350 | /* the first real CRTC device is used for all dma mapping operations */ | |
351 | private->dma_dev = exynos_drm_get_dma_device(); | |
352 | if (!private->dma_dev) { | |
353 | DRM_ERROR("no device found for DMA mapping operations.\n"); | |
354 | ret = -ENODEV; | |
355 | goto err_free_private; | |
356 | } | |
357 | DRM_INFO("Exynos DRM: using %s device for DMA mapping operations\n", | |
358 | dev_name(private->dma_dev)); | |
359 | ||
360 | /* create common IOMMU mapping for all devices attached to Exynos DRM */ | |
361 | ret = drm_create_iommu_mapping(drm); | |
362 | if (ret < 0) { | |
363 | DRM_ERROR("failed to create iommu mapping.\n"); | |
364 | goto err_free_private; | |
365 | } | |
366 | ||
367 | drm_mode_config_init(drm); | |
368 | ||
369 | exynos_drm_mode_config_init(drm); | |
370 | ||
371 | /* setup possible_clones. */ | |
372 | cnt = 0; | |
373 | clone_mask = 0; | |
374 | list_for_each_entry(encoder, &drm->mode_config.encoder_list, head) | |
375 | clone_mask |= (1 << (cnt++)); | |
376 | ||
377 | list_for_each_entry(encoder, &drm->mode_config.encoder_list, head) | |
378 | encoder->possible_clones = clone_mask; | |
379 | ||
380 | /* Try to bind all sub drivers. */ | |
381 | ret = component_bind_all(drm->dev, drm); | |
382 | if (ret) | |
383 | goto err_mode_config_cleanup; | |
384 | ||
385 | ret = drm_vblank_init(drm, drm->mode_config.num_crtc); | |
386 | if (ret) | |
387 | goto err_unbind_all; | |
388 | ||
389 | /* Probe non kms sub drivers and virtual display driver. */ | |
390 | ret = exynos_drm_device_subdrv_probe(drm); | |
391 | if (ret) | |
991dca01 | 392 | goto err_unbind_all; |
896bbc3e LP |
393 | |
394 | drm_mode_config_reset(drm); | |
395 | ||
396 | /* | |
397 | * enable drm irq mode. | |
398 | * - with irq_enabled = true, we can use the vblank feature. | |
399 | * | |
400 | * P.S. note that we wouldn't use drm irq handler but | |
401 | * just specific driver own one instead because | |
402 | * drm framework supports only one irq handler. | |
403 | */ | |
404 | drm->irq_enabled = true; | |
405 | ||
406 | /* init kms poll for handling hpd */ | |
407 | drm_kms_helper_poll_init(drm); | |
408 | ||
812fc6f2 TR |
409 | ret = exynos_drm_fbdev_init(drm); |
410 | if (ret) | |
411 | goto err_cleanup_poll; | |
896bbc3e LP |
412 | |
413 | /* register the DRM device */ | |
414 | ret = drm_dev_register(drm, 0); | |
415 | if (ret < 0) | |
416 | goto err_cleanup_fbdev; | |
417 | ||
418 | return 0; | |
419 | ||
420 | err_cleanup_fbdev: | |
421 | exynos_drm_fbdev_fini(drm); | |
812fc6f2 | 422 | err_cleanup_poll: |
896bbc3e LP |
423 | drm_kms_helper_poll_fini(drm); |
424 | exynos_drm_device_subdrv_remove(drm); | |
896bbc3e LP |
425 | err_unbind_all: |
426 | component_unbind_all(drm->dev, drm); | |
427 | err_mode_config_cleanup: | |
428 | drm_mode_config_cleanup(drm); | |
429 | drm_release_iommu_mapping(drm); | |
430 | err_free_private: | |
431 | kfree(private); | |
432 | err_free_drm: | |
433 | drm_dev_unref(drm); | |
434 | ||
435 | return ret; | |
f37cd5e8 ID |
436 | } |
437 | ||
438 | static void exynos_drm_unbind(struct device *dev) | |
439 | { | |
896bbc3e LP |
440 | struct drm_device *drm = dev_get_drvdata(dev); |
441 | ||
442 | drm_dev_unregister(drm); | |
443 | ||
444 | exynos_drm_device_subdrv_remove(drm); | |
445 | ||
446 | exynos_drm_fbdev_fini(drm); | |
447 | drm_kms_helper_poll_fini(drm); | |
448 | ||
449 | component_unbind_all(drm->dev, drm); | |
450 | drm_mode_config_cleanup(drm); | |
451 | drm_release_iommu_mapping(drm); | |
452 | ||
453 | kfree(drm->dev_private); | |
454 | drm->dev_private = NULL; | |
238604ca | 455 | dev_set_drvdata(dev, NULL); |
896bbc3e LP |
456 | |
457 | drm_dev_unref(drm); | |
f37cd5e8 ID |
458 | } |
459 | ||
460 | static const struct component_master_ops exynos_drm_ops = { | |
f37cd5e8 ID |
461 | .bind = exynos_drm_bind, |
462 | .unbind = exynos_drm_unbind, | |
1c248b7d ID |
463 | }; |
464 | ||
417133e4 AH |
465 | static int exynos_drm_platform_probe(struct platform_device *pdev) |
466 | { | |
467 | struct component_match *match; | |
468 | ||
469 | pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); | |
417133e4 AH |
470 | |
471 | match = exynos_drm_match_add(&pdev->dev); | |
472 | if (IS_ERR(match)) | |
473 | return PTR_ERR(match); | |
474 | ||
475 | return component_master_add_with_match(&pdev->dev, &exynos_drm_ops, | |
476 | match); | |
477 | } | |
478 | ||
479 | static int exynos_drm_platform_remove(struct platform_device *pdev) | |
480 | { | |
481 | component_master_del(&pdev->dev, &exynos_drm_ops); | |
482 | return 0; | |
483 | } | |
484 | ||
485 | static struct platform_driver exynos_drm_platform_driver = { | |
486 | .probe = exynos_drm_platform_probe, | |
487 | .remove = exynos_drm_platform_remove, | |
488 | .driver = { | |
489 | .name = "exynos-drm", | |
490 | .pm = &exynos_drm_pm_ops, | |
491 | }, | |
492 | }; | |
493 | ||
417133e4 | 494 | static void exynos_drm_unregister_devices(void) |
72390677 | 495 | { |
a5fb26cd MS |
496 | int i; |
497 | ||
498 | for (i = ARRAY_SIZE(exynos_drm_drivers) - 1; i >= 0; --i) { | |
499 | struct exynos_drm_driver_info *info = &exynos_drm_drivers[i]; | |
500 | struct device *dev; | |
25928a39 | 501 | |
a5fb26cd MS |
502 | if (!info->driver || !(info->flags & DRM_VIRTUAL_DEVICE)) |
503 | continue; | |
504 | ||
505 | while ((dev = bus_find_device(&platform_bus_type, NULL, | |
506 | &info->driver->driver, | |
507 | (void *)platform_bus_type.match))) { | |
508 | put_device(dev); | |
509 | platform_device_unregister(to_platform_device(dev)); | |
510 | } | |
417133e4 AH |
511 | } |
512 | } | |
7eb8f069 | 513 | |
417133e4 AH |
514 | static int exynos_drm_register_devices(void) |
515 | { | |
a5fb26cd | 516 | struct platform_device *pdev; |
417133e4 AH |
517 | int i; |
518 | ||
a5fb26cd MS |
519 | for (i = 0; i < ARRAY_SIZE(exynos_drm_drivers); ++i) { |
520 | struct exynos_drm_driver_info *info = &exynos_drm_drivers[i]; | |
417133e4 | 521 | |
a5fb26cd | 522 | if (!info->driver || !(info->flags & DRM_VIRTUAL_DEVICE)) |
417133e4 | 523 | continue; |
417133e4 | 524 | |
a5fb26cd MS |
525 | pdev = platform_device_register_simple( |
526 | info->driver->driver.name, -1, NULL, 0); | |
527 | if (IS_ERR(pdev)) | |
528 | goto fail; | |
72390677 | 529 | } |
f37cd5e8 | 530 | |
417133e4 | 531 | return 0; |
a5fb26cd MS |
532 | fail: |
533 | exynos_drm_unregister_devices(); | |
534 | return PTR_ERR(pdev); | |
1c248b7d ID |
535 | } |
536 | ||
a5fb26cd | 537 | static void exynos_drm_unregister_drivers(void) |
1c248b7d | 538 | { |
a5fb26cd | 539 | int i; |
417133e4 | 540 | |
a5fb26cd MS |
541 | for (i = ARRAY_SIZE(exynos_drm_drivers) - 1; i >= 0; --i) { |
542 | struct exynos_drm_driver_info *info = &exynos_drm_drivers[i]; | |
417133e4 | 543 | |
a5fb26cd | 544 | if (!info->driver) |
417133e4 AH |
545 | continue; |
546 | ||
a5fb26cd | 547 | platform_driver_unregister(info->driver); |
417133e4 | 548 | } |
f37cd5e8 ID |
549 | } |
550 | ||
a5fb26cd | 551 | static int exynos_drm_register_drivers(void) |
417133e4 | 552 | { |
a5fb26cd | 553 | int i, ret; |
417133e4 | 554 | |
a5fb26cd MS |
555 | for (i = 0; i < ARRAY_SIZE(exynos_drm_drivers); ++i) { |
556 | struct exynos_drm_driver_info *info = &exynos_drm_drivers[i]; | |
417133e4 | 557 | |
a5fb26cd MS |
558 | if (!info->driver) |
559 | continue; | |
417133e4 | 560 | |
a5fb26cd MS |
561 | ret = platform_driver_register(info->driver); |
562 | if (ret) | |
563 | goto fail; | |
564 | } | |
565 | return 0; | |
566 | fail: | |
567 | exynos_drm_unregister_drivers(); | |
568 | return ret; | |
417133e4 AH |
569 | } |
570 | ||
f37cd5e8 ID |
571 | static int exynos_drm_init(void) |
572 | { | |
e3b9e460 | 573 | int ret; |
f37cd5e8 | 574 | |
417133e4 AH |
575 | ret = exynos_drm_register_devices(); |
576 | if (ret) | |
577 | return ret; | |
820687be | 578 | |
a5fb26cd | 579 | ret = exynos_drm_register_drivers(); |
417133e4 AH |
580 | if (ret) |
581 | goto err_unregister_pdevs; | |
f37cd5e8 | 582 | |
f37cd5e8 ID |
583 | return 0; |
584 | ||
417133e4 AH |
585 | err_unregister_pdevs: |
586 | exynos_drm_unregister_devices(); | |
f37cd5e8 ID |
587 | |
588 | return ret; | |
589 | } | |
590 | ||
591 | static void exynos_drm_exit(void) | |
592 | { | |
a5fb26cd | 593 | exynos_drm_unregister_drivers(); |
417133e4 | 594 | exynos_drm_unregister_devices(); |
1c248b7d ID |
595 | } |
596 | ||
597 | module_init(exynos_drm_init); | |
598 | module_exit(exynos_drm_exit); | |
599 | ||
600 | MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>"); | |
601 | MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>"); | |
602 | MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>"); | |
603 | MODULE_DESCRIPTION("Samsung SoC DRM Driver"); | |
604 | MODULE_LICENSE("GPL"); |